happens ArgumentException when I dispose PictureBox's old image.

[secile]

This issue is related to issue#27

To reduce memory consumption, when I replace code from

var timer = new System.Timers.Timer(1000 / 30) { SynchronizingObject = this };
timer.Elapsed += (s, ev) => pictureBox1.Image = camera.GetBitmap();
timer.start();

to

var timer = new System.Timers.Timer(1000 / 30) { SynchronizingObject = this };
timer.Elapsed += (s, ev) =>
{
    var oldImage = pictureBox1.Image;
    pictureBox1.Image = camera.GetBitmap();
    oldImage?.Dispose();
};
timer.Start();

It happens ''ArgumentException" the line below.

pictureBox1.Image = camera.GetBitmap(); // happens exception.

[secile]

• just after camera.Start(), image buffer is not prepared yet, so camera.GetBitmap() returns blank image called EmptyBitmap.
• EmptyBitmap is single instance. camera.GetBitmap() returns same reference until image buffer is filled.
• 1st call of timer.Elapsed, camera.GetBitmap() returns EmptyBitmap.
• 2nd call of timer.Elapsed, camera.GetBitmap() returns EmptyBitmap again, and after that, EmptyBitmap is disposed.
• 3rd call of timer.Elapsed, camera.GetBitmap() returns EmptyBitmap again, but the image is already disposed.
• happens exception.